var Screen = function () {

	this.initMoveAbleChars();

};

var p = Screen.prototype;

p.initMoveAbleChars = function () {

	ASBroadcaster.initialize( this );

}

p.initialize = function () {

	// build ScoreDisplay, LifeDisplay, FruitDisplay

}

p.updateScore = function () {

	// updateScoreDisplay

}

//....